Figure 3.

Median of growth parameters across NH₄⁺ and PO₄³⁻ concentrations. Semilogarithmic profiles of (a) maximal optical density (OD_max), (b) cellular dry weight at OD_max and (c) maximal linear growth rate (μ_lin) for P. inhibens as a function of NH₄⁺ or PO₄³⁻ concentration (see Fig. 2b–d for joint display in color maps). Colors of data points indicate the corresponding NH₄⁺ or PO₄³⁻ concentration, respectively. The black solid line displays the calculated median and the dashed ones the 25% and 75% quantiles (based on 2D LOWESS fit to experimental data). A complementary fitting of a Monod function to the experimental data is shown in Fig. S5 (Supporting Information).